Each person on a team brings a unique perspective to the process; i.e., how things work; what happens when changes are made, and how to sustain improvements during daily work. Contributions are made from each individual's skill set and the team's synthesis of ideas.
Division of labor is the economic term for the practice of assigning small parts of a complicated job to individual workers who specialize in doing just their small part.
A division of labour is the dividing and specializing of cooperative labour into specifically circumscribed tasks and roles. An example of the division of labor in the workplace is how workers at a candy factory have very particular tasks. One might monitor the caramel, while another monitors the chocolate, and another sees to packaging.